Cranioplasty: The Department of Medical Engineering and Physics at Royal Perth Hospital is a world leader in providing custom made implants and has been supplying custom made titanium cranioplasties for fifteen years. The basic methodology which has been used to treat over 150 patients includes the reconstruction of the void using advanced software based on the patients CT scan. Once the void has been reconstructed a female mould is created to press the titanium plate. The plate is then hand finished and checked for fitment on a premade defect model.